The present embodiment provides a method and system that allows for varied packing volumes within a luggage case by providing a normally expanded luggage case that can be easily and stylishly compressed using a unique remote cinching device. More specifically, the present embodiment relates to a luggage case having resilient frame portions that bias the case in an expanded position and are compressed by the cinching device remotely located from these frame portions so that when activated (cinched), the cinching device provides an opposing force to those expanding forces imposed on the luggage case by the frame portions.
Luggage cases of typical construction include soft-side, hard-side, semi-rigid, hybrid structure (a combination of both soft-side and hard-side portions). There have been many systems suggested to make the packing volume of such luggage cases easily adapt to the needs of the traveler. An article of luggage that provides expansion and compression capabilities is disclosed in U.S. Patent Publication No. 2005/0194227 by William King and Ethan Mitchell of Samsonite Corporation, entitled, “Expansion System for a Luggage Case”, herein incorporated by reference.
There still exists a need, however, for a luggage case that provides varying amounts of compression—such a system may employ a system of straps, for example, that functions by a great amount of user input and emits a functional, very stylish aura. It would be beneficial to have a cinching system, one in which a webbing strap could be used to provide easy compression of the bag for storage or to firmly hold the travelers contents by maintaining the degree of cinch (compression) on the bag, all without using an unsightly expansion gusset.
It would be a design and functional advantage to provide a method of opposing an expansion force that is disposed remotely from the location of the expansion force. This positioning would make the case easier to compress, especially when manual methods are used, and would be visually appealing. In luggage, straight lines are considered to be less visually appealing than curved lines. Providing a case that may comprise both a front and back, somewhat curved panels would be a selling point.
There is therefore a need for a conformable luggage case, briefcase, tote, purse, carryon, or other travel bag that remains lightweight, easy to compress (requires little force), and stylish. A benefit of such as case would be to provide the user with an easy to carry and stow conformable luggage case that could be compressed after being closed, and/or during travel depending upon the location in which it will be stowed (such as under an airplane seat or in an overhead compartment). A further benefit would be to provide easy access to at least a portion of the case without having to release the compression or remove the case from its stowed location.
Accordingly, the disclosed embodiments include a luggage case having a front panel, a rear panel, a flexible rail extending around at least one corner portion of the case and extending between the front panel and the rear panel, and a resilient frame device in said rail for providing a restoring force to push the front and rear panel away from one another whereby the luggage case tends to remain in an expanded condition. A portion of the resilient frame device is located in the corner portion of said case, and the resilient frame device is capable of repeated flexural strain such that at least portions thereof can be brought together repeatedly, whereby the frame device provides a restoring force to the rail when it is flexed by a cinching device. This cinching device is located remotely from the corner portions, said cinching device is carried by a force transferring structure affixed to the front panel and rear panel. This force transferring structure facilitates cinching action of the cinching device, wherein said cinching action exerts a force in the direction opposite the direction of the restoring force.
Preferably the force transmitting structure comprises triangular shaped tabs that are extensions of the fabric of the front and rear panels of the case, and the resilient frame device includes frame portions mounted at the corners of the front and rear panels, and “V” shaped portions extending along the sides of the case the depth of the rail.
The present embodiment accomplishes these goals by providing a remote cinching system and method that stylishly creates compression and automatic expansion of a luggage case while also supplying an infinite number of intermediate, secure positions between a fully compressed position and a fully expanded position. The remote cinching system works in combination with resilient portions, which may comprise resilient “frame” portions, to expand the case without the use of a zipper or zippered gusset, and to perform compression of the case once the case has been packed, closed, and locked. A functional and attractive design feature, a force-transferring structure, lends a unique look to the case and carries the cinching mechanism, so that the act of cinching the case to a degree of compression desired by the user (traveler) is facilitated.
The term “luggage” herein is meant to include all types of storage and/or transport cases such as briefcases, computer bags, messenger bags, backpacks, purses, lunch bags, duffel bags, garment bags, wheeled duffel or garment bags, and other totes.
Typically constructed soft-side luggage includes conventional steel frames and reinforced corners as well as floor panels. In contrast, the present embodiment has a sleek, lightweight, simple yet effective expansion system, carried out by the resilient frame members 15, 16 etc., that effectively replaces traditional luggage frames, which resilient frame members are activated by a remote cinching mechanism mounted to the case as will be detailed.
In the past, luggage frames have also been constructed of wood or magnesium. More recently, luggage frames have been made of glass-filled nylon, as can be seen in Samsonite luggage pieces, steel, aluminum, spring steel, spring wire, or plastic (most commonly Polyvinyl chloride or PVC, especially, rigid, suspension-type PVC). Honeycomb PVC frames contain extruded air pockets within the frame, allowing the frame to flex when force is applied to the frame.
Usually, soft-sided suitcases include metal frames that are made up of a ribbon of thin corrugated sheet steel approximately 1-3″ wide running around the interior of the case. Four plastic inserts that surround the entire frame often support the corners of these metal frames. Most steel frames are generally quite rigid and not resiliently constructed to hold the case open.
The resilient frame device of the present invention comprises a narrow resilient wire frame member that acts as a spring biasing the case in the open position. While any shape, dimension, type, or composition of the resilient member could be contemplated, preferably each resilient member comprises a spring steel wire, having hollow or solid construction with a circular cross-section. The circular cross-section has inherent strength and serves to facilitate equal force distribution along the length of the frame.
Any material that would provide structure to the case and possess resilient properties could be used. For example, the resilient frame could comprise polyurethane elastomer, certain types of rubber, or any other resilient material.
As can be seen in
The frame portions could inhabit other portions of the case. To not intrude on the packing space in the main packing compartment the resilient frame members are attached to the rail portion 11 by stitching to a fabric panel 12 with a thin flexible foam sheet 10 (
The resilient frame is capable of repeated flexural strain such that at least portions of the frame can be brought together repeatedly, yet still maintain a restoring force to the luggage panels they inhabit when the panels are flexed towards one another by a cinching device. The cinching action exerts a force in the direction generally opposite the direction of the restoring force.
Referring to the figures, the cinching device is located remotely from the corner portions of the case and hence away from the location of highest resilient expansion or restoring force. In the present embodiment, a pair of straps 28 each extending across the depth of the rail 11, attach to and visually traverse the font and back panels of the bag respectively. These can be tightened, or cinched, to achieve compression of the luggage case once the case has been closed. The direction of force applied by the cinching device lays in a plane that is perpendicular to the plane of the height dimension of the front and back exterior panels. As such, when the cinching device is cinched, the distal longitudinal ends of the case tend to slightly “flare” outwardly, as the mid-portion of the case is contracted, creating an aesthetically pleasing “hour-glass” shape to the profile of even the partially cinched or compressed case. Also, since packed items tend to push out mostly on the center portion of a packed case, locating the cinching device across this center portion and locating the resilient frame members at or near the corners helps preserve a tailored, stylish appearance even when the case 1 is somewhat overpacked.
Preferably, the cinching mechanism is mounted to the outside of the case, onto an external panel. The strap may include clips or simple hooks 32 that engage the stitched loops 35 once the bag has been compressed, as shown in
Other securing mechanisms could be employed to hold the position of the strap (and thus restrain and indicate the degree of the cinch). Such securing mechanisms may comprise snaps, hook and loop fastener tabs, and so on. One could envision a barbed end of the strap that may bite into strap 33 or another part of the case, hook and loop fasteners that run along the entire length of the strap 33, along its edge or other portion, or many other methods.
An advantage of using a cinch in place of other compression methods currently known in the art, which may include expansion gussets/zippers and the like, is that one may somewhat forego precisely estimating the packing volume needed prior to packing and simply pack as desired, then simply compress the case to embrace the packed items after the case has been packed and closed. The cinching device applies even pressure around the bag, creating a relatively uniform compressive force against the outward spring bias of the resilient frame members and the packed items in the main packing compartment. Of course, the cinching device could comprise other forms or embodiments. For example, one could envision a combination of straps, a bungee system, use of other fabric panels, or other methods.
The compressive force provided by the cinched straps is carried to the front and back panels by a force-transferring mechanism. In the present embodiment, the force-transferring mechanism comprises a triangular shaped outcropping, or extension 18, of the front and rear exterior fabric panels of the case. This front panel comprises the lid 13. Of course, it should be noted that the force-transferring mechanism could be located on any portion of the case. For example, the extension could exist on the lower portion of the case, as is disclosed in
Thus, the present embodiment's front panel presents a roughly hexagonal shape when laid flat (see
Likewise, the back exterior panel 12 of the case also comprises a roughly hexagonal shape formed from the rectangular shape of the overall case when the two tabs 18 are spread out flat. Referring to
The tabs 18 act as a visual focal point and, by virtue of carrying the cinching straps, when the cinching straps are tightened help spread the compression forces. The tabs enhance the visually pleasing hourglass shape that the case takes on when cinched. The cinch, in combination with the force-transferring structure, provides easy application of compressive force against the resilient frames. An additional benefit of the tabs is that, when engaged, they provide protection to the case's peripheral zipper and therefore the contents contained therein. Again, although the force-transferring structure could take any form (including for example, a system of straps, a portion of paneling that may protrude from the front and/or back panels along all or any portion of the panel's edges and may comprise any shape or material, a bungee cord, and so on), a benefit of providing a triangularly-shaped panel, that aesthetically comes out of the front and back panels from their corner portions in a gradual manner, is that the user or traveler becomes immediately aware, based on the unique look of the case, of the functionality of those very same features.
The interior of the case may comprise a variety of support and/or structural mechanisms. The present embodiment incorporates various sheets 36 of polypropylene along the panels of the interior surface. Referring to
The handle 6 of the present embodiment surpasses traditional handle paradigms by providing a retractable/extensible handle that can be extended far enough so as to act as a tow handle. The handle of the present embodiment comprises flexible material construction and can fold in on itself within a bale wrap or grip 7. An advantage of a soft tow handle is that its strap design (two anchor points from which a strap unfolds) allows for easy directing/swerving. It is a time-saver to be able to carry a luggage case over one's shoulder and set the case down to tow it by the same handle without making adjustment. With a minor adjustment of either folding the strap within the bail wrapper using a ring or clip 30 similar to those used on the cinching device, or simply shortening the tether of the strap, the strap becomes a short, “hand strap” or carry handle. Thus it becomes economical to provide the traveler with an alternative towing mechanism to the rigid tow handle.
Referring to
A unique employment of the remote cinching system 14, 28, and 30 can be seen in
The tow handle of the upright case of
Benefits of providing a tote/storage structure with the remote cinching device include automatic expansion and compression of the vessel once it has been closed. A benefit of incorporating a resilient member into the composition of the case is that when adjusting the cinching strap, the case can be squeezed, providing slack to the strap and ease of removal of the hook from the stitched loops. The remote cinching mechanism can be applied to any structure, including purses, doctor's bags, totes, systems incorporating a rigid structure, and so on. For example, any case that is expandable, perhaps by a system of accordion-type panels facilitated by hinge pins and/or the like could enjoy the benefits of the resilient portions, force-transferring structure, and cinch. A rigid vessel that includes a soft-side portion (expandable gusset or so on) could also enjoy the benefits of the remote cinching system.
Although the present embodiment has been described with a certain degree of particularity, it is understood that the present disclosure has been made by way of example, and changes in detail or structure may be made without departing from the spirit of the invention as defined in the appended claims.
This application is the national stage application of PCT Patent Application No. PCT/US2008/053301 filed on Feb. 7, 2008 and entitled “System For Cinching a Resilient Luggage Case”, which claims the benefit under 35 U.S.C. §119(e) to U.S. Provisional Patent Application No. 60/900,154 filed on Feb. 7, 2007 and entitled “System For Cinching a Resilient Luggage Case”.
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/US2008/053301 | 2/7/2008 | WO | 00 | 11/29/2010 |
Publishing Document | Publishing Date | Country | Kind |
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WO2008/098116 | 8/14/2008 | WO | A |
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